Sash-lock.



E. R.JONES.

SASH LOCKx APPLICATION FILED APR 14, 1915- Patented. Mar. 14, 1916.

Ariana orrion.

EDWARD R. JONES, OF BALTIMORE, MARYLAND.

SASH-LOCK.

Application filed April 14, 1915. Serial No. 21,208.

To all whom it may concern:

Be it known that I, EDWARD R. JONES, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improve ments in Sash-Locks, of which the following is a specification.

This invention relates to improvements in sash locks and has particular reference to a lock device for window sashes whereby to lock the sash in a fully closed position or lock it in a partially open position in such way as to prevent it frombeing further opened.

In illustrating the invention I have shown the improved device on one side of a lower window sash, but it is to be understood that preferably both sides of the sash are provided with the improvement and that both the lower and upper sashes will be locked in the same manner but by separate lock devices. The lock device for both sides and for both sashes being of the same construction, I deem it suiiicient' to show only one of them.

In the accompanying drawing, Figure 1, shows a front elevation of a window frame and the two sashes therein,the outer casing board of the frame beingremoved to show the improved lock for the lower sash. Fig. 2, illustrates in side elevation, that part of the lock device which is carried by the frame,the sashes being removed. Fig. 3, shows an enlarged sectional detail through one verticaledge of the sashto show the sash portion of the lock device in engagement with thatpart which is carried by the frame. Fig. 4:, illustrates a portion of the sash edge with. the sash lock in place therein. Fig.5 shows the frame guides in which the sashes slide,the lower sash being, removed to illustrate the covering'plate to conceal and protect the lock devices in the frame, and Fig. 6, illustrates a crosssectional detail through the lower sash and frame,the section being taken on the line 66 of Fig. 1.

Referring to the drawing, the numeral 7 designates one vertical side of the frame box or casing on one side of which two vertical channels 8 and9, are formed to serve as guides for the lower and upper sashes 10 and 11 respectively. Each sash has a recess or mortise in its vertical edge, in which a metal case 13, fits. This metal case carries two pivoted pawls .14 and 15, respectively,

Specification of Letters Patent.

Patented Mar. 14, 1916.

the free end of the former being inclined upwardly while the free end of the latter is inclined downwardly. By referring to Fig. 3 of the drawing it will be seen that the free ends of both pawls 1 1- and 15 project outwardly beyond the vertical side edge of the sash and are yieldingly held in such outwardly-projected position by means of the pressure of the ends of a spring plate 16. The metal case 13, which is carried by the sash is provided with two spaced-apart laterally-projecting arms 17, which extend from the opposite vertical side walls of said case for a purpose presently to be described.

Adjacent to the vertical side edge of the sash I provide a vertical rod 18, which latter has its lower end supported in a bearing plate 19, carried in the present instance on the sill 20,.and its upper end held in a bracket plate .21, that projects from the casing 7. The vertical rod therefore is sustained so that it may be oscillated, and an arm 22, is provided on the rod so that one end of a rock bar 23, may engage said arm while the other end of the bar may be operated by an arm 24, which projects at the outer side of the window casing. A pivot 25, sustains the rock bar between its ends so that by pushing arm 24, inwardly the rock bar may be operated to turn rod 18, in one direction whereas upon pulling said arm outwardly the rock bar will be operated to turn said rod 18, in a reverse direction. Vertical rod 18, is provided with two rows of notches 26 and 27, respectively, each row being in adiflerent vertical plane on the rod. The notches 26, are upwardlyinclined on the rod while the row of notches 27, are downwardly-inclined on said rod. The upwardly-inclined notches 26, form stops to be engaged by the upwardlyinclined pawl 14, on-the sash, while the downwardly-inclined notches 27, form stops for the engagement of the downwardlyinclined pawl 15, on the sash. By turning the rod 18, so that the row of notches 26, will have position at the side of the pawls, the pawl 14:, will engage those notches and prevent raising of the sash, but lowering of the sash can take place because notches 27, will be turned out of the path of pawl 15, which looks the window against downward movement.

In the case of sashes that have no balance weights, I provide a coiled spring 28. on the rod, the lower end of which spring seats on a collar 29, from which arm 22, projects,

. rod 18, I provide a plate 31, which I interpose between the sash and the rod and which is held in place by the guide strips 32, so that when a sash is partly opened, access to the rod will be prevented. I

From theforegoing explanation it will be understood that if it is desired to raise the lower sash sufliciently to aid ventilation, the rod 18, may be turned so as to present the notches 26, to the side edge of the sash, as shown in Fig. l, of the drawing, whereupon pawl 14, will engage one of said notches 26, and prevent further raising of thesash; The sash may however be lowered without operating the rod 18. If it is desired to hold the sash from being drawn down the rod 18, wlll be turned so as to I present notches 27, to the side edge of the mentof the sash.

sash, as" shown in Fig. 3,v whereupon the pawl 15, will engage one or another of said notches 27 and prevent downward moverods'and locking devices at opposite edge of each sash, and turning the rod at one side to present one row of notches for en gagement and move the rod at the opposite side to present the other row of notches for engagement, the sash will be locked against movement in either direction. v

Having described my invention what I claim is,- I

1. The combination with a window frame, of a sash slidable with'respect to the frame; a pawl device on the sash; a bar at the side of the sash and having a row of notches therein] with which the pawl may engage and means for rotating the bar to shift the row of notches with respect to the pawl.

By providing vertical 2. The combination with a window frame, of a sash slidable with respect to the frame; two pawl deviceson the sash; a rotary bar at one side of the sash and having two rows of notches therein and means for rotating the bar to present a row of notches-to one pawl at a time.

8. The combination with a window frame, ofa sash slidable with respect to the frame; two pawl devices on the sash; a vertical bar adjacent to the sash and the pawls thereon,-said' bar being rotatably mounted and having two vertical rows of notches in different planes and means for rotating the bar to present one row of vertical notches at a time for engagement by a pawl.

at. The combination with a window frame, of a sash slidable with respect to the frame;

an upwardly inclined pawl on the sash; a

downwardly inclined pawl also on the sash; a vertical bar at the side of the pawls said bar having a row of upwardly-inclined notches and another row of downwardlyinclined notches and means for moving the bar to present one row of notches at a time for engagement by one of the pawls on the sash. f

5. The combination with a window frame. of a sash; a metal case in the sideedge of the sash two pawls projecting from the metal case,-one in an upwardly-inclined direction and the other in a downwardlyinclined direction; means in the case for yieldingly pressing the pawls; a rotatable bar extending vertically at the side of the sash and saidbar having one set of notches to engage one of said pawls and another set of notches to engage the other of said pawls, and means for rotating the bar to move one set of notches into operative relation with one of said pawls and the other set of notches out of operative relation with the other of said pawls.

In testimony whereof I afix my signa ture in presence of two witnesses.

V EDl/VARD R. JONES. WVitnesses: I I CHARLns B. MANN, Jr., PORTER H. FLAUTT.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G. 

